Disc Springs, also known as Belleville disc springs, Belleville springs, Belleville washers or conical washers, are specialised precision components designed for axial loading. Unlike other types of springs, Disc Springs have consistent and repeatable force/deflection curves that can be reliably determined using the standardised calculations of DIN EN (formerly DIN ). They can withstand static loads continuously or intermittently, as well as dynamic continuous load cycling. Multiple Disc Springs can be used in parallel, series, or a combination to achieve the desired force-deflection characteristic.
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Disc springs are perfect for high load situations, particularly when there is limited space available. These conical springs consist of a convex disc with the outer edge working against the centre of the disc, resulting in a strong spring force within a compact range of motion. This unique design allows for higher loads to be supported with minimal deflection and a smaller solid height compared to traditional helical springs. Due to their versatility, disc springs are widely utilised in various manufacturing and industrial settings. They have many common applications, such as:
In critical applications such as safety valves, elevator clutch and brake mechanisms, and industrial pipe system supports, Disc Springs are the preferred choice due to their predictability, reliability, and unmatched fatigue life.
When axial loading is necessary for your application, disc springs offer the ideal solution. Our discs can be designed as either single or stacked, depending on the specific requirements of our customers.
At SpingXpert, we have a wide selection of disc springs available for immediate shipment, including over 500 unique designs from our extensive inventory. If you require a custom disc spring, our team can design and produce it to your exact specifications, whether you need a small or large quantity.
Our spring and Belleville products are essential components in a wide range of sensitive applications within the oil services industry. These include safety valves, compression valves, chemical processing valves, completion tools, artificial lift pumps, oil well packers, drilling tools, and down-hole communications equipment.
Disc Springs have several advantages over other types of springs, such as:
A wide range of load/deflection characteristics
High load capacity with small deflection
Space savings &#; high load to size ratio
Consistent performance under design loads
Longer fatigue life
Inherent dampening especially with parallel stacking
Flexibility in stack arrangement to meet your application requirements.
Materials
Austenitic stainless steel is a popular choice for applications with minimal movement and exposure to corrosion. On the other hand, nickel stainless steel has proven its durability in fresh water and marine environments, as well as various industrial settings such as acidic conditions. However, it should be noted that this material may experience work hardening over time, limiting its cycle life but maintaining good resistance to creep.
Disc springs are available in a range of sizes and materials. These include stainless steel, phosphor bronze, carbon steel, and chrome vanadium steel. At SpringXpert, we provide extensive capabilities and a diverse selection of options for your disc spring manufacturing requirements, such as advanced quality control systems and expertise in regulations like RoHS, REACH, and DFARS. We also offer CAD-assisted product design, in-house prototype production services, and a global supply chain network.
Contact us to discuss your requirements of beveled washers. Our experienced sales team can help you identify the options that best suit your needs.
We have EN (DIN ), Din disc springs, Belleville washers, serrated safety washers and slotted disc springs in stock. Our material selection includes 51CrV4, CS70 and CK67. Stainless Steel 300 Series Din 1., Din 1. and Din 1. our stock disc springs and Belleville washers come in imperial and metric sizes to fit various applications and bolt sizes.
Choose from our wide range of standard options or utilise our Engineering design service to collaboratively determine the best Disc Spring or Disc Spring Stack for your application and assembly requirements.
Blog - How does stacking disc springs work?
Disc springs are useful to achieve the right forces in spaces. To achieve these forces, some disc springs need to be stacked. Installing disc springs can be done in four ways.
The first way to place a disc spring is to place a single disc spring. Placing a single disc spring is usually done with fasteners or with very heavy disc springs.
The second way, is to put several disc springs of the same kind on top of one another. This is seen on the most left stacking methode. When stacking disc springs on top of one another, the space of indentation is equal to one disc spring. The force that a series of disc springs stacked on top of one another can deliver is equal to N x A where the N stands for the force in Newton and the A is the number of disc springs.
The third way is to put the disc springs in series. In series stacking, disc springs are placed alternately with the bases above and below. This is shown in the centered picture above. When series stacking disc springs, the space of indentation is equal to the number of disc springs in free length. The forces of disc springs stacked in series is equal to the force of one disc spring. The calculation for series disc springs is Ho x A.
The fourth way is series in parallel. When parallel stacking disc springs, several disc springs are placed on top of one another on which the same series with the legs are placed the other way. Here the forces and the space of compression are equal to the formulas above, per set of disc springs.
When combining disc springs in different series, the calculation of disc springs is a bit more complicated. Below is the formula for calculating stacks of disc springs. In addition, we explain how the forces are calculated with multiple stacked disc springs. The complete calculation is explained in the section about calculating disc springs.
ni = The number of disc springs in the ith group
g = The number of groups of disc springs
k = The spring constant of one ring of disc springs.
When stacking the disc springs, the upper disc spring must always be placed with the base against the platform. Disc springs have been used in mechanical brake systems, CNC-machines, pipe supports for industrial piping systems, land mines, as vibration damping in aircraft, automotive industrial valves, pumps, machines, power tools and formula one. In Japan, disc springs have been used to protect buildings against earthquakes. Furthermore, disc springs can be found in valves, pumps, machines, and power tools.
Order all your disc springs online. Tevema has an wide range of standard disc springs in our online catalogue. Disc springs are available in group one and two. With the posibility to custom make your disc spring in mulible materials. Take a look at our options.
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